Simon
A powerful site monitoring application for Mac
Simon launched on April 17, 2018 with 7 votes, #1,113 of 2,753 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 8 years on.
What it does
Dejal Simon: Site monitor of changes and failures for macOS.
Dejal Simon is the essential site monitoring tool for macOS. It checks servers for changes or failures, and notifies you via email, sound, speech, Twitter, or other means. You can use it to track updated sites, and to alert you when an important server goes down or recovers. It is a native macOS application with an intuitive and attractive interface. Simon is very versatile. It can be used to monitor your own website and servers, track posts and new comments on your or friends' blogs, check for web mail, get notifications of updates to favorite news and entertainment websites, keep an eye on auctions, and many other uses. Central to Simon is the Monitor window. It enables you to see at a…from dejal.com
Does a similar job
all alternatives →
Paddle Analytics for Mac2015 · paddle.com · ▲116The easiest way for developers to track Mac app usage.


I ditched Grafana for my home server and built this insteadNov 2025 · github.com · ▲9Frustrated by the complexity and resource drain of multi service monitoring stacks, I built Simon. I wanted a single, lightweight dashboard to replace the heavy stack and the constant need for an SSH client for routine tasks. The result is a resource efficient dashboard in a single Rust binary, just a couple of megabytes in size. Its support for various architectures on Linux also makes it ideal for embedded systems and lightweight SBCs. It integrates: Comprehensive Monitoring: Realtime and historical metrics for the host system and Docker containers (CPU, memory, disk usage, and network…


More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 22d ago · github.com

Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 20d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 17d ago · openbot.run
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 22d ago · corespeed.io

Talanoa▲312Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 15d ago · talanoa.email
Source: Product Hunt launch ↗
Launched alongside, April 2018
the whole month →
Stripe Billing▲1,030Billing and subscriptions for fast-growing businesses
Dev tools · 2018 · stripe.com


More than just chat. Intercom's new app platform.
Life & fun · 2018 · fin.ai

The Internet’s fastest, privacy-first DNS resolver
Dev tools · 2018 · one.one.one.one
Artboard Studio▲732Online graphic design app mainly focused on product mockups.
Growth · 2018 · artboard.studio
